Dredging apparatus.



No. 845,689. PATENTED PEB. 26; 1907.

H. B. BUDDENBORG.

DRBDGING APPARATUS.

APPLICATION PILEUAUG-10. 1904.

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No. 845,689. lPATENTED PEB. 26, 1907.

H.B.BUDDBNBO RG. DREDGING APPARATUS.

APPLIoATIoN FILED-AUG. 10, 1904.

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THE Nnnms PETERS co., wAsHlNaToN. n. C.

PATENTED FEB. 26

H.B. BUDDENB0RG. DRBDGING APPARATUS.

APPAIAIIQN FILED AUG. 10, 1904.

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PATENTED FEB. 26, 1907.

H. B. BUDDBNBORG.

Y DREDGING APPARATUS. APPLIGATIONHLED AUG.10. 1904.

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HENRY B. BUDDENBORG, OF SEATTLE, WASHINGTON, ASSIGNOR OF ONE- -HALF TOMAROELLUS LARA, OF SEATTLE, WASHINGTON.

DREDGING APPARATUS.

Specification of' Letters Patent.

Patented Feb. 26, 1907.

@i Application filed August l0. 1904;. Serial Non 220,212.

To al?, whom, t 71mg/ concern:

Be it known that I, HENRY B. BUDDEN- BORG, a citizen of the LnitedStates, residing at Seattle, in the county of King and State ofWashington, have invented certain new and useful Improvements inDredging Apparatus, of which the following is a specification.

My present invention relates to improvements in dredgingapparatus, andhas special reference to a machine for operating a suction device forreceiving spoil containing fine particles in combination with an endlessconveying bucket device for removing the spoil containing the largerparticles, the said buckets being adapted to pass below and around theend of the suction-pipe so that the suction is drawn through thebuckets, which retain the larger particles.

Another object of my invention is the provision of mechanism foroperating both the suction and endless chain bucket devicesimultaneously and means whereby the end of the suction-pipe and theendless chain are raised and lowered without effecting the op eration ofeither mechanism.

I have found by experience that the ordinary suction dredging apparatus,although having an agitating mechanism, dees not ren move all theparticles that it is desired to remove, and also that the pipe willoften become clogged with large particles, the specific gravity of whichwill not allow them to pass through the pipe, and in order raise theselarge particles it has been my object produce a mechanism which whenused in connection with the suction-pipe will raise all of the spoil tothe surface, the smaller particles passing through the suction-pipe,while the larger particles are retained in the buclreis and dumped atany desired point.

To attain these objects, the invention ccnsists of a dredging apparatusembodying novel features of ccnstructicn and ccmbinatien of parts,substantially as disclcsed herein.

In the accompanying drawings, Figure 1 is a side elevation of a completedredging mechanism constructed according to and embodying my invention.Fig. 2 is an enlarged c etailed view cf the sliding frame carrying thelower end cf the sucticn-pipe and the endlessechain mechanism. Fig. 8 isa side elevation thereof. Fig. 4 is a detailed view cf one Fig. 5 is anenlarged detailed view of the suction end of the pipe, showing thevacuum stack thereof. Fig. 6 is a sectional view taken through the pipeand cage. Fig. 7 is an enlarged detailed view cf the lower end of thevertical shaft for operating the endless chain and the means for raisingand lowering the same. Fig. 8 is a similar view cf the upper end of saidshaft,

iowing its connection with the endless-chainoperating mechanism and themeans for adjusting the slack of the chain. Fig. 9 is a perspective viewcf the revolving cage and a portion of the endless chain connectedtherewith.

Referring to the drawings, A designates a pontoon or scow upon which ismounted the boiler and engine B, which is operably connected to thesuction-pumps C through the medium cf the walking-beams D and with theendless-chain:operating mechanism E through the medium cf the belt F,the said mechanism also operating the means for operating a slidingladder hereinafter to be set forth.

Mounted at one end of the pontoon is a stationary vertically-disposedframework 1, which is properly braced by means of the inclined pieces 2,so as to be rigid with the pontoon. Mounted within said framework andvertically movable or slidaole therein is a sliding frame 3, whichconsists of the two side pieces 4, upper cross-head 5, and lowercross-head 6. ln order to raise and lower this frame within thestationary framework, I secure one end of a cable 6a at 7 upon thestationary frame and pass it around pulleys S, 8a, and S, secured,respectively, to the sides of the sliding frame and to the cross-head 6over the pulley 9. secured to the opposite side of the stationaryframeto the drum 10. This drum is operated upon by the shaft 11, whosepulleys 12 receive motion from the pulley 13. When it is desired toraise or lower the sliding frame, it is simply necessary to operate thebelt 14 so that .the same is not ruiming on a loose pulley, so thatpower is transmitted, through the upper horizontal shaft 15, to theshaft 11, and consequently to the drum 10, thus pulling upon the cable6et and raising the sliding frame within the stationary frame. Thissliding frame is further provided with a crosshea l16 and a verticalstrip or piece 17, said piece 17 being secured between the crossheads 16'and 6, as vclearly shown in Fig. 7, the brace-strips 18 being employedto give great strength to the structure.- This construction provides'aspace 19 between the piece 17 and sides of the frame, the purpose ofwhich is to allow for the journaling of the beveledv gear-wheel 24,which is mounted inn-g. i.'

upon the shaft 25, which, through the medium of the pulleys 26 and belt27, receives motion from the shaft 15, as clearly shown This shaft 25 isj ournaled in one side ofthe stationary frame and projects through thevertical slot 28, formed in the inner side 4' ofthe stationary frame, asclearly shown in Fig. 4. Passing through the cross- 'headis anadjusting-screw 29, whose inner end is adapted to engage the lowerV sideof 'the sliding box 22, the purpose of which will presently appear.

Y 'Connected tov the suction-pumps and extending voutwardly toward thestationary frame is the suction hose or pipe 30, whose lower end isconnected by a coupling 31 to the pipe 32, mounted between theprojecting ends 33 of the sliding frame. This suctionpipe consistspractically of three sections 34, 35, and 36, the central'section 35being pro- 'vid'edwith the suction-mouth or intake-pipe 37 and hasj'ournaled thereon the two sprocketwhfeels 38, which are securedtogether so 'asvto revolve inunison and form a cage by means of the rods39. These rods pass around and over Vthe mouth of the intakepipe so asto screen the larger-particles and prevent them from passing into thesuction hose or pipe.

In order to prevent any pulsation at the suction-mouth due to thealternating of the plungers of my suction-pipe and to insure a steadystream of water under the suctionmouth, Iprovide the vacuum pipe orchamber 40, which is secured to the upper portion vof the section 36 andextends upward alongside and out of the way of the framework.

i Mounted in the upper open space 41 of the sliding frame and in thebearings 42 is the upper drum 43, provided with sprocketwheels 44, whichaline with the sprocketwheels 38 at theA lower end of the sliding frame,so that the endless chains 45, carrying `the scoop-buckets 46, willpass-around the drum 43' and the rotatable cageat the lower end ofthesliding frame and receive all ofthe larger particles that' cannot bedrawn througlrthe-suction-pipe and carry them to slack in the chain, thescrew 29 and screws' 49 are brought intoy operation, the screw 29operating uponl the sliding box 22, while the screws 49 operate-upon thesliding" pieces 50, thus raising the drum` 43 sufficiently to tightenthe chain, while the screw 29'A raised the sliding box 22,-so astoproperly keep'the shaft 20 and its gear 2-1 in proper-adjustment andengagement with thegear 47.` As'the screws 49 are operated to raise orlower'the drum 43 the upper gear 48, carried by l'the rod 20, will bethrown out of enga-gement 'with the gear 47 and in order to do'this Imount the lowerend of the rod- 2'0 inf'the sliding box 22', sothat thescrews 2'9"can be operated to raise or lower; the box', and con-`sequently the rod, thusalwayskeeping the gears-47 and 48- in engagementand al'soiat the same time keeping the endlessl chains properlyadjusted.

From the foregoing description the voperation of my improved' dredgingapparatus is fully understood and itsnumerous Vkvadvantages fullyappreciated, butwbri'efly stated is as follows: Theoperating mechanismisset in motion after the sliding frame has-been properly lowered inthepositionv for acting upon the spoil at'the bottom ofl a-body of water.The mechanism for lowering `the frame is disconnected and the mechanismfor operating the suction-pumps and the -end'- lesschains are set inmotion.y Thebuckets carried by the endless chain agitate the spoil andcarry it below the revolving cage -which surrounds the intake pipe ormouth offthe suction-pipe. By this lmeans the'v smaller particles thatcan enter the cageare drawn lthrough the suction-pipe and pumped toanydesired place, whiley the endless chainswith itsbuckets carries thelarger particles which cannot enter the revolvin y screen tothe-upperend of the sliding frame and empty it into a hopper or any desiredreceptacle. f Thus I provide a mechanism which is so constructed andarranged as to raise-allot the spoil and at the same time not endangerthe end of'thesuction-pipe with the large and hard particles.

This dredging apparatus'is especiallydesigned for mineral dredging, andfor-that reason can be well adapted forv dredging channels or rivers andthe like, asthe substance handled at such places is much softer than ingold dredging.

What I vclaim as new, andy desire secure by Letters Patent, isi 1. In adredging apparatusgtleeoiibinas ICO TIO

tonpof an.operatingfmeehansm va.Silrzlinn .rneehanlsrn, .a slidingytratase -earrying the lower end :of :the .suctionrrueehamem andelevator meehanisnipassingaroundthe lower `5 end vor' the suction-pipe lmounted in the sliding frame adapted to `loe operatedsimultaneously withthe l suction rnehanisrn.

2. 1n Va dredging apparatus, the oornbination vor' a frame, `aslioungtrarne carried `by said navet-mentioned trarne, a suction Vineenanismmounted in the lower end of said sliding iranie, an elevatormeohanismmounted -uponsaid sldingr'rame, andpassing'around .tne lower enolorthesuotion mechanism, and kmeans adapted to oper-ate said Vsuetion meohanism, `elevator rneehanism .and sliding frame.

3. In a dredging apparatus, a combination ofa frame, a snoeien-pipe, thelower end of which is connected .to the trame, a revolving nagesurrounding the lower endof the .suo-

tioneppe `and `adapted to prevent large par tioles rromentering thesarne,anelevator mechanism:mountedin the frame and passing ,around `therevolvingk cage .torevowe the .same and elevate theilarger ,partiel-es,.and meehanisrn for operating suction mechanism .fand elevator mechanismsirnnltaneonsly.

4. In @a dredging apparatus, the ,combination of V:a1.eta'tionaryframe., fa sliding :.fralne., fa motion-pipe, :the lower end et whieh isstatonarily mounted the `.lower end oi .said

trarne .and oom-Leeted tothe suction- `pipe., .a revolving nage .mounted4upon v said stationary endet the suction-pipe :andsur- :rounding anelerrat'orirneehanism .adapted t0 revolve around .saidoage.andrneohanisrn .for operating the .fsnotionmeehanlsm .and.lelevator ,mechanism.simultaneously.

:In `.a .dredging apparatus, `the combina- `tion oa snow or pontoon,.astationarydraine carried thereby, .another :frame `slidailo'ly mounted.said ,stationary .trarne .a .suction .mechanism hawinigits tower endmounted in the lower end of the sliding frame, arettolwfeagernonntedlnpon theil-ower end olfsaid asuotion 'mechanism-.andsurrounding the :in-v talreemonth thereof, fsaid eage .hei-ng :proavidedwith .sprocket-teeth, ...a drum'amounted the upperfendlof .theslidingtrarne and havring psproeket-Iteeth 5in alimentent :with theyssprooketaeeth of thezloage, :an .endless ohain adapted to pass aroundtheeagefandiclrninn,

ibnolrets .carried by :sa-id endless :,chan, and an @and aoperablyconnected with 'the suction Vmechanism andendless ,oha'in mechanism.

116. ln a. dredgi-ng apparatus, the ,combina- 'tionioffasuotion-pipe,:aProtatab'leioage mount- ,red upon :said .suction-pipe and surroundingthe intake-mouth thereof, and :fanaouufrneharnber'finaoommunioationuwithithefsudtionpipev1Joeyonditlnetintakeernoirththereof.

fa dredging apparams, .the `ioo-rn-blina-1625"ntie-:neef.fa.slidingherrera .Fsuotionepipa the @for :raising `thedrinn to taire theslaels. 0f

zqioperatingrneohanism mountedtfup on thefsoow loweriendiof wleehtestet-.inn the lewerendof, tneslieing ree end being provided with a eenranged;v intakeanonth, a. reta-table, 4nage jeurneledrupontheet io;ryfplre nd 70 surrounding th.. nteke-n10uth thereof, mentira-onere erfne 'f' the '.euetenfpipe .beren ...1;.1 thereof.

vas. The -eombinetion Awith ,a -drelginefme- .f7 5 ehine, `r-of .asuetionfppe, a l. ehamberbeyond the'fint lie-imi 9. yln combination with:a ...dg chine, -of a suetionfpipe h if. stationary end, .asereen t tosurround -thesnetenend fet-.said pipe preventflarge .articles from en.'Iig same, rurter provided-wip. teeth upon .the thereof, ,and-elevatormeehanism for -eonveying larger particion for .18 5 transmitting .motionto the sereen.

l0, Ina dredging appara-tirs, the .tion .of ,a stationary trame.,anotherr nie Slidingly mounted `Within .seid stationairafrazme, asuction-*pine haring-.its .lower end 9.o mounted `in Athe sliding nie, arotatable sereen .surrounding the' in eernonth of the sentan-pipe,-

endless elevato. `Cim!noni .snrronnnngsad sereeaa in the opper of the.slidingrirameortransmitting niof tten to `the E.elerann in, shaft foroperating upon-seid fdrnnl.,g-ireens erilrfeerriedin 141.1,

.the @elevator Vnieehamein,\` and ,lowering the Nertiea ismitoroperating the s .elem-atar meohanisni smil. han@ 11 .1.1.Inadredgingrmeelhanisrn tion of ..a ,seoWNastati-nnar fr menor-rindthereby, another rameslidingly mounted in .saidstationaryhameimeohanisforraising and :flowering said sliding fnieehanism, .a l.snedenpipeeonnontedrrith :the snow, va .stationary pipe named ffinlthe lower endofthe sliding Jframe and oonneegted to the.suction-pipa@.rotatingisoneen .or oa ge :mounted :upon the stationarypipe, radjjors- `:allele 1deeanings mounted iin :the `upper .portion ofthe y.sliding traine, .la drum aunke. :tween said lhearings, endless.-hans `over :said drurnand :reMQlWng-Soleein,1&4 of `huela/ets .earredloyisaid ohmios, @a `wantenal shaft adjustazhly mounted ,in elle drame,.means for moving ,the shearingsfofgthe ,frame :to `tali-e up .the slack{of-:the rehenes,` Vmeans for ,.opera'ting the fentioailsshait'iorlceeping it inadjnstrnentwrth theeand mechanism :tor .operating saidWiertieail shaft Nand Uthe suotion `fineohanism fsimililtarllellil'y.

12. In a dredging apparatus, the oornbtnafition .feta snow, .fastationalr *fra-nre, :a .Sliding frame, fa fsuotion emeohanism rslll rimRQIQQZQI Imechanism.earriedbyitheisli' @fr o i,yelevator'-rneeh,anisrnpassingsrn nftlillwtr end `tot Asaid `snetmnrmeehenism, `and :1,30

for operating said suction mechanism and elevator mechanismsimultaneously carried 13. In a dredging apparatus, the combination of ascow, a stationary -i-rame, a sliding frame, a suction mechanism, anelevator Amechanism carried bysaidsliding framasaid elevator mechanismpassing around the lower end of said suction mechanism, mechanism 'forraising and lowering the sliding frame, 'and mechanism for operating thesuctionpipe, elevator mechanism andraising and lowering mechanism. v

14. The combination with `a dredgingmachine, of a suction-pipe the lowerend of which is substantially T-shaped, the intakemouth-being the lowerterminal, and a rotatable screen mounted upon the other terminal andsurrounding the intake-mouth.

l5. The combination with a dredgingmachine, ofva suction-pipe, the lowerend of Vwhich is substantially T-shaped, the intakemouth being the lowerterminal, and a vacuum-chamber beyond the intake-mouth.

16. Thecombination with a dredgingmachine, of a suction-pipe, the lowerend of which is substantially T-shaped, the intakemouth being the 'lowerterminal, a rotatable screen mounted upon the other terminals Vandsurrounding t'ne intake-mouth, and a machine, of a suction-pipe, thelower end of which is substantially T-shaped` the intakemouth being thelower terminal, a rotatable screen mounted upon the other terminals andsurrounding the intake-mouth, and an elevator mechanism for removinglarger particles passing over said screen.

20. The combination with a dredgingmachine, of a suction-pipe, the lowerend of which is substantially T-shaped, the intakemouth being thelowerterminal, a vacuumchamberbeyond the intake-mouth, and an elevatormechanism for removing large particles.

21. The combination with a dredgingmachine, cfa suction-pipe, the lowerend of which is substantially T-shaped, the intake- ...mouth being thelower terminal, a rotatable 65,'

screen mounted upon the other terminals mouth being the lower terminal avacuumchamber beyond the intake-mouth, and an elevator mechanism forremoving large par.-

23. The combination with a dredgingmachine, of a suction-pipe, the lowerend of which is substantially T-shaped, the intakemouth being the lowerterminal, a rotatable screen mounted upon the other terminals andsurrounding the intake-mouth, a vacuumchamber beyond the intake-mouth,and an elevator mechanism for removing larger particles passing oversaid screen.

24. In a dredging apparatus, the combination of a suction-pipe, thelower end of which is adapted to lie substantially horizontal with thebed of the river, having a centrallyarranged downwardly projectingintake-mouth, a screen rotatably mounted upon the horizontal portion andsurrounding the intake-mouth, a drum mounted above said screen and inalinement therewith, and an elevator mechanism for removing largerparticles passing around said drum and screen.

25. In a dredging apparatus, the combination of a suction-pipe, thelower end of which is adapted to lie horizontally with the bed of theriver having a centrally-arranged downwardly-projecting intakemouth, ascreen rotatably mounted upon the horizontal portion and surrounding theintakemouth, a drum mounted above said screen and in alinementtherewith, and a pair of endless chains carrying elevating means forremoving larger particles passing around said drum and screen, andmechanism for operating the' suction-pipe and endless chains.

26. In a dredging apparatus, the combination of a sliding frame,mechanism for removing the iine particles located in the lower end ofsaid sliding frame, mechanism forremoving the coarser particles passingaround the lower end of said inst-mentioned mechanism, and mechanism foroperating both of said mechanisms.

27. In a dredging apparatus, the combination of a sliding frame,mechanism for removing iine particles, a revolving screening meanssurrounding the lower end of said mechanism, and mechanism for removingcoarser particles passing around said screening means and the lower endof the first mechanism.

28. In a dredging-machine, the combination of an operating mechanism, asuction mechanism, screening means mountedupon the lower end of thesuction mechanism, and- IOO IIO

an endless conveying mechanismy passing around the screening means andthe lower end of the suction mechanism, whereby the suction mechanismwillconvey ne particles. while the endless conveying mechanism con- Veyslarger particles.

29. In a dredging apparatus, the combination of a sliding frame, asuction mechanism, the lower end of which is mounted in the lower end ofthe sliding frame, an elevator I mechanism mounted around the lower endof i the suction mechanism and in the upper portion of the slidingframe, means for transmitting motion to the upper end of the elevatormechanism, mechanism for adjusting the elevator mechanism7 and mechanismfor adjusting the operating mechanism.

Inl testimony whereof I aflix my signature in presence of two Witnesses.

JOHN PETERSON, MARCELLUS LARA.

